/* ---------- 主页 hero ---------- */
html:not(.landing) .hero { text-align: center; padding: 26px 0 20px; position: relative; }
html:not(.landing) .hero-title { font-size: 34px; font-weight: 800; letter-spacing: 1px; }
.hero-head { display: flex; align-items: baseline; justify-content: center; gap: 24px; flex-wrap: wrap; }
.hero-sub-inline { color: var(--sub); font-size: 14px; font-weight: 400; }
.hero-sub { color: var(--sub); margin: 4px 0 22px; }
.scroll-toggle {
  border: 1.5px solid var(--purple-border);
  background: var(--purple-soft);
  color: var(--purple-dark);
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 700;
  padding: 4px 13px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  flex: none;
}
.scroll-toggle:hover { border-color: var(--purple); }
.scroll-toggle.on { background: var(--purple); border-color: var(--purple); color: #fff; }
.search-row {
  display: flex;
  gap: 10px;
  max-width: 640px;
  margin: 0 auto;
}
.search-input {
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 10px 54px 10px 16px;
  font-size: 15px;
  font-family: inherit;
  background: #fff;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.search-btn {
  position: absolute;
  top: 3px;
  right: 3px;
  bottom: 3px;
  width: 46px;
  border: none;
  border-radius: 9px;
  background: var(--purple);
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}
.search-btn:hover { background: var(--purple-dark); }
.search-input:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px var(--purple-soft);
}
.tag-bar-wrap { display: flex; align-items: center; justify-content: center; gap: 12px; row-gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.tag-bar {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  justify-content: safe center;
  align-items: center;
  flex: 1;
  flex-basis: 100%;
  min-width: 0;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  -webkit-overflow-scrolling: touch;
}
.tag-bar::-webkit-scrollbar { display: none; height: 0; }
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--sub);
  font-size: 13px;
  font-family: inherit;
  padding: 4px 12px;
  border-radius: 999px;
  transition: all 0.15s;
  cursor: pointer;
  flex: none;
  white-space: nowrap;
}
.tag-chip:hover { border-color: var(--purple); color: var(--purple); }
.tag-on { background: var(--purple); border-color: var(--purple); color: #fff; }
.tag-on:hover { color: #fff; }
.tag-sm { padding: 2px 9px; font-size: 12px; }
.tag-clear {
  color: var(--danger);
  border-color: #f6d5d5;
  background: var(--danger-soft);
  font-size: 13px;
  padding: 4px 12px;
}
.tag-clear:hover { border-color: var(--danger); color: var(--danger); }
.tag-sticky { display: flex; align-items: center; gap: 8px; flex: none; }
.tag-divider { width: 1px; height: 18px; background: var(--border); margin: 0 4px; flex: none; }
.tag-edit-btn {
  flex: none;
  border: 1.5px solid var(--purple-border);
  background: var(--purple-soft);
  color: var(--purple-dark);
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.tag-edit-btn:hover { border-color: var(--purple); }

/* ---------- 标签栏拖拽编辑器 ---------- */
.tbe-classes {
  max-height: 56vh;
  overflow-y: auto;
  margin: 8px 0 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  scrollbar-width: thin;
  scrollbar-color: #cdbdf2 transparent;
}
.tbe-classes::-webkit-scrollbar { width: 10px; }
.tbe-classes::-webkit-scrollbar-track { background: transparent; margin: 6px 0; }
.tbe-classes::-webkit-scrollbar-thumb {
  background: #d7cbf5;
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
.tbe-classes::-webkit-scrollbar-thumb:hover { background: var(--purple); background-clip: padding-box; }
html[data-theme="dark"] .tbe-classes { scrollbar-color: #4a3d6b transparent; }
html[data-theme="dark"] .tbe-classes::-webkit-scrollbar-thumb { background: #4a3d6b; background-clip: padding-box; }
.tbe-class {
  border: 1px dashed var(--purple-border);
  border-radius: 10px;
  padding: 8px;
  margin-bottom: 8px;
  background: var(--bg);
}
.tbe-class:last-child { margin-bottom: 0; }
.tbe-class.dragging { opacity: 0.55; }
.tbe-class-head { display: flex; align-items: center; gap: 6px; cursor: grab; user-select: none; margin-bottom: 6px; touch-action: none; }
.tbe-grip { color: var(--sub); }
.tbe-class-name { font-size: 13px; font-weight: 700; color: var(--sub); }
.tbe-del-class {
  margin-left: auto;
  width: 22px;
  height: 22px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--sub);
  font-family: inherit;
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
}
.tbe-del-class:hover { background: #fdeaea; color: var(--danger); }
html[data-theme="dark"] .tbe-del-class:hover { background: #4a2c2c; color: #ff9b9b; }
.tbe-tags { display: flex; flex-wrap: wrap; gap: 6px; min-height: 30px; }
.tbe-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--sub);
  cursor: pointer;
  user-select: none;
  touch-action: none;
}
.tbe-tag.shown { background: var(--purple-soft); border-color: var(--purple-border); color: var(--purple-dark); }
.tbe-tag.dragging { opacity: 0.5; pointer-events: none; }
.tbe-class[data-show="0"] { opacity: 0.55; }
.tbe-class[data-show="0"] .tbe-class-name { text-decoration: line-through; }
.tbe-class[data-show="1"] .tbe-class-name { color: var(--purple-dark); }
.tbe-add-tag {
  display: inline-flex;
  align-items: center;
  border: 1px dashed #ecdfae;
  background: #fefcf6;
  color: var(--gold-dark);
  border-radius: 999px;
  padding: 3px 12px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  cursor: pointer;
}
.tbe-add-tag:hover { background: #fbf4e2; }
.tbe-add-class {
  display: block;
  width: 100%;
  margin-top: 4px;
  border: 1.5px dashed #ecdfae;
  background: #fefcf6;
  color: var(--gold-dark);
  border-radius: 10px;
  padding: 9px 18px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.tbe-add-class:hover { background: #fbf4e2; }
html[data-theme="dark"] .tbe-add-tag,
html[data-theme="dark"] .tbe-add-class { color: #d9bc5e; background: var(--gold-soft); border-color: #5a4c25; }
html[data-theme="dark"] .tbe-tag { background: var(--card); }
html[data-theme="dark"] .tbe-tag.shown { background: var(--purple-soft); color: #c9b8f5; }

.tbe-menu {
  position: fixed;
  z-index: 200;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-hover);
  padding: 4px;
  display: flex;
  flex-direction: column;
}
.tbe-menu button {
  background: none;
  border: none;
  text-align: left;
  padding: 8px 16px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
}
.tbe-menu button:hover { background: var(--purple-soft); color: var(--purple); }

/* ---------- 撤销提示 ---------- */
.undo-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  background: #2f2640;
  color: #fff;
  border-radius: 999px;
  padding: 10px 12px 10px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-hover);
  z-index: 210;
  font-size: 14px;
  animation: slideDown 0.2s ease;
  max-width: 92vw;
}
.undo-toast .undo-btn {
  background: var(--gold);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 5px 14px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}
.undo-toast .undo-btn:hover { background: var(--gold-dark); }
.undo-toast .undo-sec { color: #bdb2d4; font-size: 12.5px; white-space: nowrap; }

/* ---------- 轻量弹层（输入/确认） ---------- */
.mini-mask {
  position: fixed;
  inset: 0;
  background: rgba(40, 30, 60, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
  padding: 20px;
}
.mini-box {
  background: var(--card);
  border-radius: 14px;
  box-shadow: var(--shadow-hover);
  padding: 18px 20px;
  width: 100%;
  max-width: 340px;
  animation: pop 0.15s ease;
}
.mini-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.mini-hint { font-size: 12.5px; color: var(--sub); margin-bottom: 10px; line-height: 1.5; }
.mini-input {
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 9px 13px;
  font-family: inherit;
  font-size: 14px;
  background: #fff;
  color: var(--text);
  outline: none;
  margin-bottom: 14px;
}
.mini-input:focus { border-color: var(--purple); box-shadow: 0 0 0 3px var(--purple-soft); }
.mini-actions { display: flex; justify-content: flex-end; gap: 10px; }
.mini-btn {
  border: none;
  border-radius: 9px;
  padding: 7px 16px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.mini-cancel { background: var(--purple-soft); color: var(--purple-dark); }
.mini-cancel:hover { background: #e9e0ff; }
.mini-ok { background: var(--purple); color: #fff; }
.mini-ok:hover { background: var(--purple-dark); }
.mini-danger { background: var(--danger); color: #fff; }
.mini-danger:hover { background: #c94f4f; }
html[data-theme="dark"] .mini-input { background: #221c33; }
html[data-theme="dark"] .mini-cancel { color: #c9b8f5; }
.result-note { color: var(--sub); font-size: 13.5px; margin-top: 16px; text-align: center; }
.file-group-title {
  position: sticky;
  top: 0;
  z-index: 3;
  background: var(--bg);
  font-size: 14px;
  font-weight: 700;
  color: var(--sub);
  margin: 0;
  padding: 6px 2px 6px;
}
.file-group-title:first-child { padding-top: 0; }

/* ---------- 搜索联想下拉 ---------- */
.search-box { position: relative; flex: 1; min-width: 0; }
.search-suggest {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-hover);
  z-index: 40;
  padding: 6px;
  text-align: left;
}
.ss-group-label { font-size: 12px; color: var(--sub); padding: 6px 12px 3px; }
.ss-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.ss-item:hover { background: var(--purple-soft); color: var(--purple); }

/* ---------- 筛选开关（∩交集 / ∪并集） ---------- */
.filter-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
  color: var(--sub);
  user-select: none;
}
.filter-toggle input { display: none; }
.ft-track {
  width: 56px;
  height: 29px;
  border-radius: 999px;
  background: var(--purple-soft);
  border: 1.5px solid var(--purple-border);
  position: relative;
  display: inline-block;
  transition: background 0.25s;
  flex-shrink: 0;
}
.ft-knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 23px;
  height: 23px;
  border-radius: 50%;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  color: var(--purple);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  transition: transform 0.25s;
}
.ft-knob::before { content: '∩'; }
.filter-toggle input:checked + .ft-track { background: var(--gold); border-color: var(--gold); }
.filter-toggle input:checked + .ft-track .ft-knob { transform: translateX(27px); color: var(--gold-dark); }
.filter-toggle input:checked + .ft-track .ft-knob::before { content: '∪'; }

/* ---------- 标签勾选 ---------- */
.tag-check-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 14px; }
.tag-check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 13.5px;
  cursor: pointer;
  background: #fff;
  color: var(--text);
  transition: all 0.15s;
  user-select: none;
}
.tag-check input { display: none; }
.tag-check:has(input:checked) { background: var(--purple); border-color: var(--purple); color: #fff; }
html[data-theme="dark"] .tag-check { background: var(--card); }
html[data-theme="dark"] .tag-check:has(input:checked) { background: var(--purple); color: #fff; }

/* ---------- 文件墙 ---------- */
.file-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: 12px;
  margin: 8px auto 0;
  max-width: 1320px;
}
.file-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  transition: box-shadow 0.18s, transform 0.18s;
}
.file-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.file-card-top { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: 6px; }
.file-type {
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 8px;
  letter-spacing: 0.5px;
}
.ft-red { background: #fdeaea; color: #c04a4a; }
.ft-blue { background: #e8f1fd; color: #3a6fc4; }
.ft-green { background: #e8f8ee; color: #2f8a58; }
.ft-orange { background: #fdf0e3; color: #c27a2e; }
.ft-yellow { background: var(--gold-soft); color: var(--gold-dark); }
.ft-pink { background: #fdeaf4; color: #c24a86; }
.ft-purple { background: var(--purple-soft); color: var(--purple-dark); }
.ft-cyan { background: #e7f7f9; color: #2e8c97; }
.ft-gray { background: #f1eff5; color: #6b6478; }
.file-actions { display: flex; flex-wrap: wrap; gap: 6px; flex-shrink: 0; }
.file-card .btn-sm { padding: 4px 10px; font-size: 12.5px; }
.file-title {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.45;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.file-desc {
  color: var(--sub);
  font-size: 13.5px;
  line-height: 1.5;
  min-height: 3em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.file-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  color: var(--sub);
  font-size: 12.5px;
  margin-top: auto;
}
.file-foot { margin-top: 8px; display: flex; align-items: flex-end; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.file-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.file-stats { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  border: 1px solid #ecdfae;
  background: #fefcf6;
  color: var(--gold-dark);
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}
.stat-chip:hover { background: #fbf4e2; }
.stat-chip.on { background: var(--gold); border-color: var(--gold); color: #fff; }
html[data-theme="dark"] .stat-chip { background: var(--gold-soft); border-color: #5a4c25; color: #d9bc5e; }
html[data-theme="dark"] .stat-chip.on { background: var(--gold); color: #fff; }